Skitarii Battle-Pilgryms of the Horus Heresy (Warhammer 40,000 Lore)
Watch on YouTubeVideo summary
The Skitarii of the Horus Heresy originated as specialized warrior clans on Mars during the catastrophic Age of Strife, a period when the Red Planet's terraformed biosphere collapsed under ecological failure and rampant artificial intelligence corruption. Facing apex predators known as Sai Carnivora and other machine horrors, these early humans adapted by scavenging lost technology and utilizing cybernetic augmentations to survive the harsh wasteland. This process of flesh shriving and mechanical replacement was initially a painful necessity but eventually evolved into a hollowed tradition where warriors voluntarily submitted their bodies to become part of a collective gestalt network. Through this neural linking, they gained access to the distilled knowledge of their fallen predecessors, transforming from isolated survivors into a unified military force dedicated solely to the preservation of technology and the service of the Machine God.
As the Cult Mechanicus rose under the leadership of the Fabricator General, the Skitarii conclaves expanded dramatically, evolving from independent scavenger clans into a fearsome, self-sufficient army distinct from the complex feudal politics of other Mechanicum tagmata. Under the direct jurisdiction of the Fabricator General, these units were tasked with hunting for ancient artifacts across the galaxy to rebuild the Imperium's industrial base, yet they were strictly forbidden from wielding or understanding the devices they recovered, ensuring that such power remained under the control of the priesthood. Their tactical doctrine remained rooted in their scavenger origins, favoring light infantry engagements with portable weapons like volkite heat rays and prioritizing mobility over heavy armor. This specialization, combined with a rigid command structure devoid of ego, made them highly effective but inflexible warriors who relied on negotiations with other forge worlds for support rather than demanding resources as an independent military arm.
The outbreak of the Horus Heresy and the subsequent Schism of Mars shattered the unity of the Skitarii, dividing them into loyalists serving Fabricator Locum Zagreus Kane and traitors following the corrupt Fabricator General Kelbor-Hal. During the Death of Innocence, loyalist conclaves secretly sabotaged Kelbor-Hal's plans by destroying his enemies before he could unleash the cursed scrap code upon the galaxy, leading to a brutal civil war where Skitarii units clashed with their own kind for the first time in history. While the loyalists fought to preserve the sanctity of the Machine God and safeguard relics like the sarcophagus of the first Fabricator General, the traitor conclaves became increasingly barbaric, daubed in enemy blood and utilizing recovered xenos weaponry to commit atrocities. Kelbor-Hal attempted to rewire their loyalty with malefic binary code, but a significant portion of the network severed its connection, resulting in a devastating loss of life and legacy for both factions before the traitors were eventually purged following the fall of Horus Lupercal.
In the aftermath of the Siege of Terra and the Scouring of the Heresy, the Skitarii were reorganized into legions that serve individual forge worlds rather than a single Fabricator General, marking a significant departure from their ancient ancestors. While they retain their dedication to the quest for knowledge and the worship of the Machine God, modern Skitarii have largely abandoned their elongated limbs and scavenger mentality in favor of more humanoid forms and standing army structures. The traditions of the old conclaves, including their specific hunting strategies and communal neural networks, were lost to the fires of ambition and civil war that tore the galaxy asunder. Today, they stand as a testament to both the resilience of the Mechanicus and the tragic cost of the Heresy, having transformed from the desperate survivors of Mars into disciplined soldiers whose history is stained by the bloodshed of their own internal conflicts.
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Within a common understanding of the
word duty,
many will find meaning.
The commitment to an ideal higher than
the self is an admirable thing to be
sure, driving one forward where material
circumstances
may argue otherwise.
Most will speak of duty as a voluntary
thing, an interplay between one's
responsibilities and obligations, but
inherently one's belief in the state,
the cause, the religion, or whatever
else one has pledged oneself to.
>> [music]
>> When duty becomes a core part of the
self
through means inherent, say for example,
techno-organic programming
and grammatical shackles,
can it truly be called duty
in the sense that we commonly understand
it?
I shall leave such debates to minds
greater than my own
and concern myself with the facts at
hand. For the subject of this record,
were defined by a duty inviolate,
utterly loyal to the cause they served,
and therein lies a tale most
fascinating.
And know then
that this is a record of the
Technologist Pilgrims, the Red Hand of
Mars,
and the right hand of the Fabricator
General,
the Skitarii of the Horus Heresy.
The first Skitarii conclaves were formed
on Mars during the long and terrible
millennia of the Age of Strife.
The red planet's fall during that
benighted epoch had been especially
severe.
Having been terraformed many millennia
before, indeed being the first human
world to have been so uplifted,
its climate proved more fragile than
many could have anticipated.
As the empire it had created was
gradually and then suddenly severed from
reach,
supply chains dwindled, in turn
affecting everything from food
production to industrial output,
and yes, technological stability.
Mars's ecological and climate
stabilization systems failed
spectacularly, annihilating a planetary
biosphere that had taken tens of
thousands of years and immeasurable
human effort to create and sustain.
The Mars of old returned,
a dust-choked, irradiated wasteland
scoured by solar winds, roamed now by
desperate hordes vying for their very
survival.
But things more terrible still.
Mars's societal and ecological collapse,
along with the rampant artificial
intelligences that had savaged it so
terribly during the Machine Wars,
had created strains of mendicant
technological abominations that menaced
its surviving human population.
Most prominent in surviving historical
record are mentions of the so-called Sai
Carnivora.
And while we have little in the way of
descriptions of them,
it appears they acted as essentially
apex predators, slaughtering bands of
terrified humans for nothing other than
seemingly insatiable malice.
Their code engrams corrupted alongside
the red planet's fall.
In these dark millennia, many thousands
of years before the first tech-priests
of the Cult Mechanicus began preaching
the word of the Machine God and his
Omnissiah,
the Skitarii conclaves were first
created.
To survive the depredations of the
wasteland and the machine horrors that
stalked them, the humanity of Mars was
forced to adapt.
Technology and devices that had survived
society's collapse became prized above
all else, especially if they could
continue to function in the new reality
that was the Age of Strife.
The hunt for such technology became
critical to a clan's continued
existence,
despite the risks such treasure seeking
inevitably brought.
The most prosperous clan bands survived
the wastes with a mixture of tenacity,
cunning, and sheer speed.
A straight fight with attack
abominations that stalked the red sands
was rarely a better idea than simply out
pacing them.
Artifact hunting was a way of life on
Mars for many millennia,
developing a culture that revered
technology, if not religiously, then as
a fulcrum around which kin groups could
eke out a meager to modestly prosperous
existence.
During this era, cybernetic augmetics
were covered that allowed the warriors
of these clans to enhance themselves,
becoming long of limb to better outrun
their predators, shield their human
organs against radiation cascades,
and even retain and exploit the precious
knowledge and skills that kept their
kindred safe.
These were the first Skitarii, warriors
of the techno clans, seekers of lost
knowledge, migrant scavengers abroad
across a dead world.
Over time, the augmetics of these clans
gradually developed into what history
knows as the Corpus Skitarii,
a collective term for the cybernetic
enhancements that transformed their
bodies from baseline humans into cyborg
warriors.
Over time, the process developed from
robust practicality into a hollowed
tradition amongst the first Skitarii
conclaves, primarily due to its
extremely painful and invasive nature.
Initially, these aspirants were
submitted to the conclave for
augmentation,
willfully volunteering to undergo the
flesh shriving that they may become a
warrior to protect their kin.
Though there were exceptions, almost all
have their arms and legs replaced by
augmetics, while a significant amount of
their internal organs are likewise
replaced by cybernetic equivalents.
It is said the first conclaves used the
very rocks and sands of Mars to grind
their limbs to stumps while awaiting
machine grafts.
And while this cannot be independently
verified, it is widely known that the
flesh shriving is as excruciatingly
painful as its name implies.
At a certain point in the process,
however, the warrior is largely freed
from this pain. The augmetics implanted
into their brain beginning to rewire
their human matter with the touch of the
machine.
This burgeoning network of neural links
possess within them the distilled
knowledge and experience of all their
conclave brethren that came before and
fell in battle.
This form of psycho-indoctrination
was foundational to the conclave's early
survival, for it allowed for the
preservation of that most precious
resource of all, their knowledge base.
It allows even the most callow youth to
become a lethal warrior within an
extremely short amount of time, with
their new augmetic bodies providing them
enhanced strength and durability
besides, capable of surviving wounds
that would destroy a baseline human.
Their individual self is, of course,
long gone.
They are now subsumed within a primitive
gestalt,
their predecessors speaking to them
through skills and knowledge,
themselves networked to others within
their conclave,
reborn fully as Skitarii.
With the coming of the worship of the
Machine God and the eventual rise of the
Mechanicum of Mars,
the Skitarii conclaves became natural
early allies for the tech-priests of the
Deus Mechanicus.
Millennia of skills combating the worst
abominations of the wastelands made them
valuable military assets,
while their technological base was a
highly sought-after addition to the
Mechanicum's burgeoning polity.
They were, indeed, culturally aligned.
Millennia of seeking out the lost
treasures of Mars's ancient past had
already instilled within the conclaves a
near-religious devotion for technology,
and the overwhelming majority of the
kin-bands were eager and zealous
converts.
Indeed, the artifacts in their
possession were critical in the
foundation of the Mechanicum's
industrial base,
aiding those first production lines,
habitation constructs, and agricultural
settlements.
For this,
they were honored by the very first
Fabricator General with induction into
their personal service.
During the centuries prior to the Treaty
of Olympus,
the Skitarii conclaves underwent massive
expansion under the direct patronage of
the Fabricator General.
No longer required to raise members of
isolated clans for their numbers,
each conclave was assigned a forge
domain from which to levy the indentured
workers subservient to said forges.
They rapidly became a truly fearsome
military arm of the Mechanicum, one
that, quite crucially, was removed from
adherence to the Byzantine feudal web of
compacts, alliances, and treaties that
formed the means through which the
Mechanicum's tagmata would normally be
raised.
Under the laws governing the tagmata,
each tech-priest, militant cult, or
forge feign negotiated their own
standing commitment of soldiery,
equipment, vehicles, automata, and all
other potential elements.
A system that, while capable of levying
the very best the Mechanicum could
offer,
was deeply complex
and quite prone to political
manipulation and disruptive factors.
Skitarii Alpha Conclaves were held apart
from this,
instead being under the personal
jurisdiction of the incumbent Fabricator
General,
wholly beholden to their orders and thus
their personal agenda,
in addition to the significant military
might the Fabricator General's forge no
doubt already afforded them.
Nominally, this was done in the name of
serving the Mechanicum at large, as was
indeed, of course, the Fabricator
General's role.
Thus, the Conclaves' deployment carried
with it no small element of political
optics.
In large part, however, successive
Fabricators General wielded them in line
with their stated mission
to seek out lost technology, continuing
the culture of the original migrant
clans, but now at a wholly new scale.
Accordingly, the expansion of the
Conclaves developed them into focused,
self-sufficient armies that, even before
the advent of the Great Crusade, were
capable of operating far from Mars with
limited to no support from the Red
Planet.
Even before the warp storms that defined
the Age of Strife had fully abated,
Conclave elements were dispatched beyond
the light of Sol to search for ancient
technology amongst the roiling shadows
of a hungry galaxy.
Although it is difficult to verify if
any of these quests were in fact
successful.
What is certain, however,
is that with the signing of the Treaty
of Olympus between the Imperium of Terra
and the Mechanicum of Mars,
Skitarii Conclaves were dispatched anew
into the void. Sometimes as militant
arms of the Basilicon Astra, sometimes
with Taghmata of Mars,
and sometimes entirely unsupported. But
all with the same ultimate goal,
recovery and preservation of technology
once lost to humanity in the name of the
God of the Machine and his sacred quest
for knowledge.
Each Conclave developed and maintained
its own specialties, strategies, and
traditions for their hunts.
But one commonality shared between them
was that despite their skills in combat,
none were trained or inducted into the
mysteries of the actual use of the
devices they recovered.
They could not, nor by the dictats of
the Fabricator General, ever seek to
wield what they had discovered.
Merely ensure its preservation and swift
return to Mars or one of her allied
forges.
A great many of these were stored within
the massive archival vaults of the
Martian moon of Phobos under the
watchful guard of the First Conclave.
Again, these artifacts were under the
personal control of the Fabricator
General as they had all been ruled too
precious, too fragile, or too dangerous
to ever be removed.
Likewise limiting the Skitarii Conclaves
was their access to arms and armaments
beyond their own personally wielded war
gear.
The first tribes possessed the robust
scavenger mentality and environment that
in many ways locked them to a specific
style of warfare,
namely light infantry engagements with
portable weapons that prioritized a
combination of stopping power,
utility of movement, and ease of
maintenance.
In this,
the first Fabricator General did little
to change.
The Skitarii battle pilgrims of the
Great Crusade and laterally the Horus
Heresy
existed in much the same form as their
ancestors of the Age of Strife had.
The Corpus Skitarii granting them
elongated legs for rapid battlefield
traversal and opportunistic hit-and-run
tactics.
While their refined volt-lock variants
of Martian volkite heat ray weapons
proved a perfect degree of killing power
and ease of field maintenance.
Their dedication to their craft and the
code dictats under which they lived
within their mangled neurology
developed exceptional skills and
abilities, but with a very narrow
specialization.
They were fundamentally incapable of
performing any roles other than the ones
they occupied.
The conclaves were responsible for the
forging of their own war gear
and permitted to use no others.
This often rendered them dependent on
the goodwill of other forges and tagmata
in their search for artifacts.
A very deliberate measure designed to
curtail the ability of the Fabricator
General to possess a powerful and
capable personal army.
Binding the quest of the Skitarii to the
service of the Mechanicum as a whole
and forcing cooperation between the
factious followers of the Machine God.
Given that each conclave nominally spoke
with the word of the Fabricator General,
it is perhaps reasonable for acolytes to
assume they could simply demand supply
and support from client forge worlds or
tagmata.
In reality, this was never the case.
The lords of the mechanicum exercised
significant authority within their
domains, far eclipsing their analogs
within the Imperium.
Any support to be extracted from them
was to be provided only through
significant negotiations.
A skitarii force, however, had much to
offer a forge world.
Alliances of both convenience and
long-standing could readily be struck,
providing the skitarii with armored
fighting vehicles and automata maniples,
as well as sundry other tagma, in
exchange for the conclave service.
In the case of fighting vehicles, for
example, a conclave could sometimes
amass many that would become permanent
additions to their roster,
while others merely incorporated them
into deployments for the duration of
specific campaigns.
All skitarii conclaves were commanded by
the arch ordinator, an officer
answerable directly to the fabricator
general.
These individuals are acknowledged to be
specifically skilled and experienced
warriors,
bereft of ego and utterly committed to
the betterment of the conclaves and the
success of all skitarii missions.
A conclave was then subdivided into
themata, numbering 16 in a standard
conclave.
Collective themata were then divided
between locos 1 through 22, then into
corpii of 12 skitarii each, roughly
analogous to a squad formation within
the legion as a starties or Imperial
Army.
In the field, the most senior officer to
a detachment, no matter the size, would
be then appointed the brevet rank of
skitarii marshal, a temporary position
of overall battlefield or campaign
command that leveraged the skills of the
warrior but did not continually place
them above their fellows.
Likewise, each corpus of cyborgs would
be commanded by an ordinator similarly
appointed through seniority alone.
Such an almost ad hoc command structure
was only made possible through the
network gestalt quality of the Skitarii
themselves.
The knowledge retaining engrams of their
corpii Skitarii allowing for such things
to be possible.
They cared nothing for the pursuit of
rank or privilege, merely the success of
an individual mission.
Ego is thus never a consideration within
Skitarii conclaves.
It made them superlatively dedicated and
razor focused to their goals
but also rigidly hidebound.
In certain cases, conclaves would be
followed by hosts of Osteolaejoy
known amongst the Mechanicum at large as
bone pickers.
Essentially vagabond religious pilgrims
these bizarre unaugmented humans would
comb through the detritus of the battles
fought by the Skitarii.
In their eyes, painstakingly salvaging
the remnants of a just holy war fought
by the cybernetic soldiery they so
adored.
To such wretches, even something as
mundane as spent shell casings possessed
the quality of a low-grade relic
for it had been in contact with and
utilized by higher forms of technology.
For the twinned divine purpose of the
retrieval of technology
>> [music]
>> and the persecution of the machine god's
enemies.
Bone picker formations were thus never
coherent in their numbers or scale nor
incorporated officially into a
conclave's standard line of battle.
They could, however, readily be used as
human shields. One whose religious
fervor meant they would never disobey an
order from a Skitarii marshal if such
chose to gave one.
By the outbreak of the Horus Heresy,
there were some 30 Skitarii conclaves
operating at the behest of Fabricator
General Kelbor-Hal.
The Schism of Mars was as catastrophic
to the conclaves as it was for the
Mechanicum as a whole.
And while one's acolytes may presume
that their programmed loyalty to the
Cies of Olympus Mons would have seen the
Skitarii in their totality follow Hal
into traitorous damnation.
This was not the case.
When the Fabricator General broke the
seals on the vaults of Moravec,
releasing the cursed scrap code upon the
red planet, and precipitating what
history now knows as the death of
innocence,
he counted upon the unbreakable loyalty
of the Skitarii to enact far more
precise destruction.
And indeed, many of them did just so.
Six hours prior to the opening of the
vaults, Kelbor-Hal transmitted General
Order Omega 99 to all Ordinatus Prime in
encoded bynaric,
instructing their deployment against
forges and magi he knew would never
follow him.
Or those against which he held a special
malice.
This preliminary phase of the death of
innocence saw Skitarii conclaves loyal
to Olympus Mons strike clandestinely at
the Fabricator General's enemies,
conducting savage and professional
sabotage or obliteration operations.
In some cases, unleashing some of
Kelbor-Hal's most destructive Dark Age
of Technology devices and weapons.
The bynaric was clear.
The Skitarii served the Fabricator
General,
and the Fabricator General served the
Mechanicum.
Yet, within this logical paradigm,
the root of Skitarii loyalty to the
birth of the Mechanicum itself
was the understanding that the
conclaves, too, served the Mechanicum.
For the Fabricator General was the
embodiment of the Machine God's servant
given immortal vessel.
None had ever attacked the Mechanicum as
a whole.
Of course, there had been internal feuds
in the past, internecine spats between
forges, but no civil conflict had in
centuries been conducted on anything
approaching the scale
of destruction that the death of
innocents had unleashed.
Such an act of monstrous annihilation
could not, by the evidence of the
Skitarii's own oculars,
possibly serve the interests of the
Mechanicum.
And thus, Kelbor-Hal could no longer be
the Fabricator General.
The transmissions of Archmagos Zagreus
Kane, claiming the authority he asserted
was forfeited by Kelbor-Hal,
provided these loyal Skitarii a new
Fabricator General to serve. For the
incumbent had renounced his authority in
a tidal wave of nuclear fire.
Worse yet, this destruction was clearly
being aided by in part by relics from
the vaults of Phobos, relics the
Skitarii conclaves themselves had placed
there for safekeeping, further
destroying their legacy and the
commitment to the Mechanicum's ideals
Kelbor-Hal was supposed to have
safeguarded.
Seeing this opposition move like
lightning through the gestalts of the
conclaves, Kelbor-Hal realized his error
and that he could not count upon the
fulsome loyalty of his Skitarii.
Moving quickly, he injected a scrapcode
infection into the conclaves networks,
hard re-wiring their command protocols
with malefic binary, but the damage had
already been done.
Fully 1/3 of the conclaves had severed
their links to the Olympus Mons network,
removing them from the control of the
Fabricator General and reassigning their
loyalty to the word of Fabricator Locum
Zagrius Kane.
The first act of a contingent of these
loyalists, even as billions of Martians
perished around them in the throes of
the death of innocents,
was to launch an attack on Phobos.
Some 12 hours into the fall of Mars,
Conclave Incursus Lambda Psi affected a
landing on the moon. Its guards wholly
unaware that their loyalty no longer was
within the reach of Kelbor-Hal.
Some 3,000 Skitarii aboard a squadron of
shuttle craft breached the hangar's
defenses, fighting a distraction assault
that allowed smaller teams of
infiltrators to reach their main
objective, the archival vaults.
Skitarii warriors clashed with each
other for the first time in Imperial
history.
It is recorded that in one fateful
instance, two marshals in command
exchanged binary blerts, each attempting
to ascertain the meaning behind the
other one's logic of loyalty.
The debate lasted approximately 8.2
seconds thanks to the depth of
information contained within Mechanicum
code blerts, but it was for naught.
Neither could see the other's
perspective.
The slaughter broke out once again,
ensavaging both garrison Skitarii and
attacking loyalists.
The infiltrators succeeded where the
distraction force was slaughtered.
The remains of the attacking conclave
bore away from Phobos a relic of
astonishing providence,
the sarcophagus of the very first
Fabricator General.
While there was no doubt far more
powerful weapons and devices within the
vaults,
the sarcophagus, when borne to
Fabricator Locum Kane's forge, was
instrumental in providing him with the
authority, political and religious both,
to establish himself as a true and loyal
Fabricator General.
As the Heresy progressed, the debasement
and corruption commonly visible amongst
traitor forces eventually took hold
amongst the Skitarii I conclaves loyal
to Kelbor-Hal.
The first symptoms were clearly visible
as early as the Death of Innocence.
Infected by scrap code, the logic
processors of those first fallen were
corrupted by baleful influences.
Rewritten to not only obey the word of
Hal, but also the secret song that
underwrote the universe.
These were the first Skitarii I to daub
their robes with the blood of their
enemies.
An act so curiously barbarian that it
was remarked upon even by tech-priests
newly come to Hal's so-called true
Mechanicum.
This aberrant behavior would only worsen
as the years of the civil war wore
onwards.
With Skitarii I traitors engaging in
increasingly bloodthirsty displays that
ill became their once professional
conduct.
It did not lessen their capabilities, of
course.
In many cases, the hunger for
bloodletting and violence made them
better warriors. Any attendant Magi
either turning a blind eye to this or
openly reveling in the grotesquery,
according to their own degrees of
corruptive debasement.
Kelbor-Hal made extensive use of these
conclaves as both enforcers and shock
troops.
The latter against loyalists, and the
former against any fractious Magi he was
nominally considering as allies.
>> [music]
>> They were frequently dispatched to
traitor forge worlds that had failed to
meet the demands of the Fabricator
General or did not show a due degree of
supplication to the Warmaster.
No few Archmagi found in dereliction of
their commitments were brutally killed
by Skitarii,
earning the cyborgs the informal term
the Red Hand of Mars amongst the true
Mechanicum as a whole.
Some conclaves were placed upon loan to
Horus Lupercal,
the traitor primarchs or other traitor
forces.
As the hunger for lost technology that
may provide them some degree of edge in
the conflict was very much present
across the entire sweep of the Lost and
the Damned.
Many of the heresy's greatest atrocities
could only have been committed thanks to
the recovery of terrible weapons, some
of which indeed were of xenos origin, by
fallen Skitarii.
With the conclusion of the Siege of
Terra and the fall of the Warmaster,
the Skitarii conclaves were reformed
under the new Adeptus Mechanicus as part
of the sweeping reorganizations of that
institution undertaken during the
scouring.
In their present form to this day,
Skitarii legions are a far cry in both
presentation and formation than their
archaic ancestors.
Sworn to serve the Archmagi of
individual forge worlds, not the
Fabricator General.
While still wholly dedicated to the
Mechanicus' quest for knowledge,
they are no longer the mendicant
conclaves of old,
but more akin to standing armies of the
forge. The treasure hunts of the Great
Crusade now being the responsibility of
all the machine god's servants, not
merely the Skitarii.
They are no longer long of limb, but
typically take a more humanoid form.
Although it must be noted that some
Skitarii legions adopt vastly different
forms and cultures.
In truth,
the heresy transformed the Skitarii in
ways it did so many other human cultures
and formations.
Those of old and simply no longer are.
Their traditions lost to the fires of an
ambition that tore the galaxy asunder.
So many such cases stain our history
that it drives one to great sorrow.
And I must commit myself to rest.
Until such a time as I may elucidate you
once more.
Ave Imperator.
Gloria
in excelsis terra.
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>> [music]
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>> Amen.
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>> Amen.
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>> Amen.
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>> Amen.
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>> Amen.
Amen.
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>> Amen.
>> [singing]
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>> Amen.
Amen.